| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/sync_file_system/task_logger.h" |
| |
| #include <stddef.h> |
| |
| #include "base/lazy_instance.h" |
| #include "base/synchronization/lock.h" |
| |
| namespace sync_file_system { |
| |
| namespace { |
| |
| const size_t kMaxLogSize = 500; |
| |
| int g_next_log_id = 1; |
| base::LazyInstance<base::Lock>::Leaky g_log_id_lock = LAZY_INSTANCE_INITIALIZER; |
| |
| int GenerateLogID() { |
| base::AutoLock lock(g_log_id_lock.Get()); |
| return g_next_log_id++; |
| } |
| |
| } // namespace |
| |
| typedef TaskLogger::TaskLog TaskLog; |
| |
| TaskLogger::TaskLog::TaskLog() : log_id(GenerateLogID()) {} |
| TaskLogger::TaskLog::~TaskLog() {} |
| |
| TaskLogger::TaskLogger() {} |
| |
| TaskLogger::~TaskLogger() { |
| ClearLog(); |
| } |
| |
| void TaskLogger::RecordLog(std::unique_ptr<TaskLog> log) { |
| if (!log) |
| return; |
| |
| if (log_history_.size() >= kMaxLogSize) { |
| log_history_.pop_front(); |
| } |
| |
| log_history_.push_back(std::move(log)); |
| |
| for (auto& observer : observers_) |
| observer.OnLogRecorded(*log_history_.back()); |
| } |
| |
| void TaskLogger::ClearLog() { |
| log_history_.clear(); |
| } |
| |
| void TaskLogger::AddObserver(Observer* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void TaskLogger::RemoveObserver(Observer* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| const TaskLogger::LogList& TaskLogger::GetLog() const { |
| return log_history_; |
| } |
| |
| } // namespace sync_file_system |